High-tension disconnecting-switch.



A. S. KALENBORN &- A. J. PAHL.

HIGH TENSION DISGONNEGTING SWITCH.

APPILIGATION FILED 1120.30, 1911.

1,081,671 Patented Dec. 16, 1913.

- awuewbo z roan and Aneosr United States,

that they may be-adapted to not only wlthnnrrnn sear-i Anion s. KALnnBoRn AND AUGUST J. PAHL, OF SAN e a r a.

new "la Prrlnhi FRANGISCG, CALIFGRNEA,

HIGH- TENSION To all whom it may concern p Be it'known that we, ARION'S. KALEN- J. PAHL, citizens of the residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in High-Tension connecting-Switches, of which the followang is a full, clear, and exact description.

-' This invention relates to high tension electric disconnecting switches and has for one of its objects the construction of a switch of this type which shall be more economical of construction than like devices,

adapted to meet corresponding conditions,-

as heretofore constructed.

Another object of the invention is to so dispose the di-electric parts of the appliance stand the disruptive electrical stresses to which they are subjecmd, but that they may also successfully withstand the mechanical stresses to which they are frequently subjected when in use.

A further object of the, invention is to to a minimum the total number of parts in the appliance.

These and will be hereinafter referred to and the novel elements and combinations of elements whereby these objects are accomplished will be more particularly set forth in the ap- I hence to be limited-only pended claims. It is to be understood how ever, that many modifications and changes may be made in the device shown by way of illustration herein and'the invention is by the scope of the said appended claims.

In the drawing's'which form a part hereof and in which like references designate like.

parts throughout the several views: Figure 1 is a side elevation of a high tension. disconnecting switch constructed in accordance with the principles'ot our invention. Fig. 2 is a plan of the same. Fig. 3 is an end elevation of a pair of said switches with an operative connection therebetween.

Beferrin to the drawin s, two line wires 1-4 are therein shown isposed in alinement'; thewire designated 1 being connect ed, for example, to. the eye ,3 of a stud 4:, the head 5 at theinner extremity of which is embedded in an urnlorella shaped or petti- Specification a Letters Eatcnt. Application filed December 30, 191i.

Dis-' other objects of the invention DISCONNECTIEQG-SWITCH;

Patented Dec. th "i i es Serial no. assess.

coat insulator 6. Later-ally projecting from the opposite side of this insulator, and in alinement with the stud l, is a pin 7, the extremity of which adjacent the head 5 may be correspondingly headed as at 8; both the pin 7 and stud 4; being rigidly secured in the petticoat insulator.

The pin 7 is revolubly mounted in a hearing 9 and the inner extremity of this pin may be provided with a head 10 adapted to prevent its inadvertent removal from the bearing. The pin may be gitudinal displacement in the other direction by a collar 11; and it also carries a crank or lever 12, by means of which it may be rotated in its bearing. If desired, a set screw 13, or some equivalent means, may be provided for the purpose oi preventing too free movement of the pin 7 and the parts carried thereby.

Bearing 9 is fixedly mounted upon a crossarm or beam 1 and studs 15 aresecured in said arm which serve to rigidly connect it to a similar arm 16. The last mentioned cross-arm carries a bearing 17 similar to hearing 9, except that it is preferable to secure the pin 18, which is mounted in hearing 17, against rotary as well as endwise movement. To prevent longitudinal movement of pin 18 with respect to its bearing the pin may be headed as at 19, and is provided with a collar 20. Pin 18 also carries a petticoat insulator 21. from which projects a stud 4. The studs l-% respectively have secured thereto the switch arms 22-23, the latter of which is provided with spring contacts :24: adapted for the reception of the switch blade 25 therebetween.

he insulators 6 and 21 may he of porcelain, or other suitable material. M

In Fig. 3 are exemplified means for actuating a plurality of the novel switches siis as follows: Owing to the position of the pins 7-l8 and studs t- -i, eiibstantial in alinernent, when the device is sooner as shown in Fig. l to taut line wii cs,

tension in the said wires notende to i'zetar'ily displaceanyof the held against lon.

'- in the manner shownyand with but two in the switch proper. The cross-arms 14 -16 support the weight of the parts and the insulators 6-21. are subject substantially only to a direct pull. One of these insulators is rotatable, being mounted upon-the rota: table pin 7, but the other is fixed. The switch arm 22 which is fast uponthe stud 4 which projects from the rotatable insulator is also revoluhle. By means of the lever' 24, theblade 25 maybe swung into or out sula'tors, are applicable to circuits of all "voltages ranging from,"let us say, *2000 to -20,QOO volts; The number of insulators, however, may be varied,=so that circuitsas high as 200,'O00'volts may be efiiciently dis- "connected by means of switches similar to that herein shown. It is preferred to ground -.the mechanical connections disposed between the insulators so as" to prevent any possibility lost a puncturedinsula'tor allowing ourrent to How from one side of the line toe'the -'other when the switch is open. The 7" V--and 18 are therefore shown as being grounded at 27. Finally, it-is sometimes desirable tocompletelyinterrup eithera plurality of independent high tension circuits, or the same circuit at two points. -=In Fig. 3 two rotary switches of the type in qliestion are shown vmounted side by side; and/relatively adjacent each othe r'.- The connection between these operating levers enables both tobe actuated simultaneously. 1 V I The insulators 6 are lmown in the parlance of,the art as dead endlng lnsulators and the construction exemplified embodiesthese insulators, which must be used inany case,

- directly in the switch proper,- reducing to the fewest number of parts aswitch applicable to any voltage.

necting said elements both mechanically and electrically to adjacent alined line wires,

the axis of rotation of. said rotatably mounted element being in alinement with said line wires, and insulating supporting means for said elements.

2. A high tension disconnecting switch comprising .a fixed element and a rotatably mounted conductive element, means for con-;

necting said elements both mechanically and electrically to adjacent alined line wires, the

axis of rotation of said rotatably mounted element being inalinement with said line wires, and insulating supporting means for said elements, said insulating supporting means including a fixed insulator and a rotatably mounted 'insulator. p

3. A high tension disconnecting switch comprising afixed element and a rotatably mounted conductiveelement, means for connecting said elements both mechanically and electricallyto adjacent alined line wires, the axis ofrotation of sa id rotatably mounted element being in alinement with said line wires, and insulatingsupporting means for said elements, said insulating supporting means includin a fixed insulator and a rotatably mounted insulator, the axis of rotation ofsaid rotatably mounted insulator being the same as that of said rotatably mounted conductive element.

4, high tension disconnecting switch comprising two axially alined petticoat lnsulat0rs,'0ne of which is rotatably mounted,

mechanical connections between said insula-- tors, conductive switch elements carried by said insulators, and means for connectmg alined line wires to said insulators.

In witness whereof, we subscribe our signatures in the presence of two witnesses.

ARION S. KALENBORN.

AUGUSTJ, PAHL. .o Witnesses:- P

M, A. THOMAS, A. S. HENLEY.

' copies of this patent may he obtained-for five cents each, by addressing the fcommisslcner o! Patents- Washington, D. 0. 

